// -----------------------------------------------------------------------------------
//
//	Lightbox v2.02
//	by Lokesh Dhakar - http://www.huddletogether.com
//	3/31/06
//
//	For more information on this script, visit:
//	http://huddletogether.com/projects/lightbox2/
//
//	Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/
//
//	Credit also due to those who have helped, inspired, and made their code available to the public.
//	Including: Scott Upton(uptonic.com), Peter-Paul Koch(quirksmode.org), Thomas Fuchs(mir.aculo.us), and others.
//
//
// -----------------------------------------------------------------------------------
/*

Changes by Siddique Hameed :
12/20/06 - Modified script to work as GWT widget

History of changes by ahavriluk:
07/23/06 - fixed issue with background color being green in FireFox. Made music player appear and hide depending on
				   slideshow play mode.
07/21/06 - added color background support for music player. To change the skin look at createMusicPlayer function.
07/19/06 - added changeImageByTimer() function which helps to load the image while the entire page is loading.
07/17/06 - fixed a bug when slideshow doesn't start if navigation buttons (next/prev) were used first and slideshow=0 at start
	 - added code to remove dotted lines around images-links
	 - added code which suppose to help starting slideshow before a page is totaly loaded
*/

/*

	Table of Contents
	-----------------
	Configuration
	Global Variables

	Extending Built-in Objects
	- Object.extend(Element)
	- Array.prototype.removeDuplicates()
	- Array.prototype.empty()

	Lightbox Class Declaration
	- initialize()
	- start()
	- changeImage()
	- resizeImageContainer()
	- showImage()
	- updateDetails()
	- updateNav()
	- enableKeyboardNav()
	- disableKeyboardNav()
	- keyboardAction()
	- preloadNeighborImages()
	- end()

	Miscellaneous Functions
	- getPageScroll()
	- getPageSize()
	- getKey()
	- listenKey()
	- showSelectBoxes()
	- hideSelectBoxes()
	- pause()
	- initLightbox()

	Function Calls
	- addLoadEvent(initLightbox)

	Slideshow Functions
	- toggleSlideShow()
	- startSlideShow()
	- stopSlideShow()
	- showMusicPlayer()
	- playMusic()
	- stopMusic()



*/
// -----------------------------------------------------------------------------------

//
//	Configuration
//
var musicPlayer = "lightbox/playerMini.swf"
var fileLoadingImage = "lightbox//loading.gif";
var fileBottomNavCloseImage = "lightbox//close1.gif";
var resizeSpeed = 7;
// controls the speed of the image resizing (1=slowest and 10=fastest)
var borderSize = 10;
//if you adjust the padding in the CSS, you will need to update this variable

//--- Slideshow options
//var slideShowWidth = 600;	// -1 size slideshow window based on each image
//var slideShowHeight = 450;	// -1 size slideshow window based on each image
var slideShowWidth = -1;
var slideShowHeight = -1;
var SlideShowStartImage = "lightbox/start.gif";
// Slideshow toggle button
var SlideShowStopImage = "lightbox/stop.gif";
var slideshow = 1;
// Set 0 if you want to disable slideshows by default
var foreverLoop = 0;
// Set 0 if want to stop on last image or Set 1 for Infinite loop feature
var loopInterval = 3000;
// image swap interval
var resize = 1;
// Set 0 to disable auto-resizing
// -----------------------------------------------------------------------------------

//
//	Global Variables
//

var imageArray = new Array;
var activeImage;

if (resizeSpeed > 10) {
    resizeSpeed = 10;
}
if (resizeSpeed < 1) {
    resizeSpeed = 1;
}
resizeDuration = (11 - resizeSpeed) * 0.15;

var so = null;
var objSlideShowImage;
var objLightboxImage;
var objImageDataContainer;

var keyPressed = false;
var slideshowMusic = null;
var firstTime = 1;

var saveSlideshow;
var saveForeverLoop;
var saveLoopInterval;
var saveSlideShowWidth;
var saveSlideShowHeight;
// -----------------------------------------------------------------------------------

//
//	Additional methods for Element added by SU, Couloir
//	- further additions by Lokesh Dhakar (huddletogether.com)
//
Object.extend(Element, {
    getWidth: function(element) {
        element = $(element);
        return element.offsetWidth;
    },
    setWidth: function(element, w) {
        element = $(element);
        element.style.width = w + "px";
    },
    setHeight: function(element, h) {
        element = $(element);
        element.style.height = h + "px";
    },
    setTop: function(element, t) {
        element = $(element);
        element.style.top = t + "px";
    },
    setSrc: function(element, src) {
        element = $(element);
        element.src = src;
    },
    setHref: function(element, href) {
        element = $(element);
        element.href = href;
    },
    setInnerHTML: function(element, content) {
        element = $(element);
        element.innerHTML = content;
    }
});

// -----------------------------------------------------------------------------------

//
//	Extending built-in Array object
//	- array.removeDuplicates()
//	- array.empty()
//
Array.prototype.removeDuplicates = function () {
    for (i = 1; i < this.length; i++) {
        if (this[i][0] == this[i - 1][0]) {
            this.splice(i, 1);
        }
    }
}

// -----------------------------------------------------------------------------------

Array.prototype.empty = function () {
    for (i = 0; i <= this.length; i++) {
        this.shift();
    }
}

// -----------------------------------------------------------------------------------

//
//	Lightbox Class Declaration
//	- initialize()
//	- start()
//	- changeImage()
//	- resizeImageContainer()
//	- showImage()
//	- updateDetails()
//	- updateNav()
//	- enableKeyboardNav()
//	- disableKeyboardNav()
//	- keyboardNavAction()
//	- preloadNeighborImages()
//	- end()
//
//	Structuring of code inspired by Scott Upton (http://www.uptonic.com/)
//
var Lightbox = Class.create();

Lightbox.prototype = {

// initialize()
// Constructor runs on completion of the DOM loading. Loops through anchor tags looking for
// 'lightbox' references and applies onclick events to appropriate links. The 2nd section of
// the function inserts html at the bottom of the page which is used to display the shadow
// overlay and the image container.
//
    initialize: function() {
        if (!document.getElementsByTagName) {
            return;
        }
        var anchors = document.getElementsByTagName('a');

        // loop through all anchor tags
        for (var i = 0; i < anchors.length; i++) {
            var anchor = anchors[i];

            var relAttribute = String(anchor.getAttribute('rel'));

            // use the string.match() method to catch 'lightbox' references in the rel attribute
            if (anchor.getAttribute('href') && (relAttribute.toLowerCase().match('lightbox'))) {
                anchor.onclick = function () {
                    myLightbox.start(this);
                    return false;
                }
            }
        }

        // The rest of this code inserts html at the bottom of the page that looks similar to this:
        //
        //	<div id="overlay"></div>
        //	<div id="lightbox">
        //		<div id="outerImageContainer">
        //			<div id="imageContainer">
        //				<img id="lightboxImage">
        //				<div style="" id="hoverNav">
        //					<a href="#" id="prevLink"></a>
        //					<a href="#" id="nextLink"></a>
        //				</div>
        //				<div id="loading">
        //					<a href="#" id="loadingLink">
        //						<img src="images/loading.gif">
        //					</a>
        //				</div>
        //			</div>
        //		</div>
        //		<div id="imageDataContainer">
        //			<div id="imageData">
        //				<div id="imageDetails">
        //					<span id="caption"></span>
        //					<span id="numberDisplay"></span>
        //				</div>
        //				<div id="bottomNav">
        //					<a href="#" id="bottomNavClose">
        //						<img src="images/close.gif">
        //					</a>
        //				</div>
        //			</div>
        //		</div>
        //	</div>


        var objBody = document.getElementsByTagName("body").item(0);

        var objOverlay = document.createElement("div");
        objOverlay.setAttribute('id', 'overlay');
        objOverlay.style.display = 'none';
        objOverlay.onclick = function() {
            myLightbox.end();
            return false;
        }
        objBody.appendChild(objOverlay);

        var objLightbox = document.createElement("div");
        objLightbox.setAttribute('id', 'lightbox');
        objLightbox.style.display = 'none';
        objBody.appendChild(objLightbox);

        var objOuterImageContainer = document.createElement("div");
        objOuterImageContainer.setAttribute('id', 'outerImageContainer');
        objLightbox.appendChild(objOuterImageContainer);

        var objImageContainer = document.createElement("div");
        objImageContainer.setAttribute('id', 'imageContainer');
        objOuterImageContainer.appendChild(objImageContainer);

        objLightboxImage = document.createElement("img");
        objLightboxImage.setAttribute('id', 'lightboxImage');
        objLightboxImage.setAttribute('width', '');
        //needed for proper resizing
        objLightboxImage.setAttribute('height', '');
        //needed for proper resizing
        objImageContainer.appendChild(objLightboxImage);

        var objHoverNav = document.createElement("div");
        objHoverNav.setAttribute('id', 'hoverNav');
        objImageContainer.appendChild(objHoverNav);

        var objPrevLink = document.createElement("a");
        objPrevLink.setAttribute('id', 'prevLink');
        objPrevLink.setAttribute('href', '#');
        objPrevLink.setAttribute('onFocus', 'if (this.blur) this.blur()');
        objHoverNav.appendChild(objPrevLink);

        var objNextLink = document.createElement("a");
        objNextLink.setAttribute('id', 'nextLink');
        objNextLink.setAttribute('href', '#');
        objNextLink.setAttribute('onFocus', 'if (this.blur) this.blur()');
        objHoverNav.appendChild(objNextLink);

        var objLoading = document.createElement("div");
        objLoading.setAttribute('id', 'loading');
        objImageContainer.appendChild(objLoading);

        var objLoadingLink = document.createElement("a");
        objLoadingLink.setAttribute('id', 'loadingLink');
        objLoadingLink.setAttribute('href', '#');
        objLoadingLink.setAttribute('onFocus', 'if (this.blur) this.blur()');
        objLoadingLink.onclick = function() {
            myLightbox.end();
            return false;
        }
        objLoading.appendChild(objLoadingLink);

        var objLoadingImage = document.createElement("img");
        objLoadingImage.setAttribute('src', fileLoadingImage);
        objLoadingLink.appendChild(objLoadingImage);

        objImageDataContainer = document.createElement("div");
        objImageDataContainer.setAttribute('id', 'imageDataContainer');
        objImageDataContainer.className = 'clearfix';
        objLightbox.appendChild(objImageDataContainer);

        var objImageData = document.createElement("div");
        objImageData.setAttribute('id', 'imageData');
        objImageDataContainer.appendChild(objImageData);

        var objImageDetails = document.createElement("div");
        objImageDetails.setAttribute('id', 'imageDetails');
        objImageData.appendChild(objImageDetails);

        var objCaption = document.createElement("span");
        objCaption.setAttribute('id', 'caption');
        objImageDetails.appendChild(objCaption);

        var objNumberDisplay = document.createElement("span");
        objNumberDisplay.setAttribute('id', 'numberDisplay');
        objImageDetails.appendChild(objNumberDisplay);


        //Bottom Navigation
        var objBottomNav = document.createElement("div");
        objBottomNav.setAttribute('id', 'bottomNav');
        objImageData.appendChild(objBottomNav);


        var objBottomNavCloseLink = document.createElement("a");
        objBottomNavCloseLink.setAttribute('id', 'bottomNavClose');
        objBottomNavCloseLink.setAttribute('href', '#');
        objBottomNavCloseLink.setAttribute('onFocus', 'if (this.blur) this.blur()');
        objBottomNavCloseLink.onclick = function() {
            myLightbox.end();
            return false;
        }
        objBottomNav.appendChild(objBottomNavCloseLink);

        var objBottomNavCloseImage = document.createElement("img");
        objBottomNavCloseImage.setAttribute('src', fileBottomNavCloseImage);
        objBottomNavCloseLink.appendChild(objBottomNavCloseImage);

        // slide show link
        var objSlideShowLink = document.createElement("a");
        objSlideShowLink.setAttribute('id', 'slideshowLink');
        objSlideShowLink.setAttribute('href', '#');
        objSlideShowLink.setAttribute('onFocus', 'if (this.blur) this.blur()');
        objSlideShowLink.onclick = function() {
            myLightbox.toggleSlideShow();
            return false;
        }
        objBottomNav.appendChild(objSlideShowLink);

        objSlideShowImage = document.createElement("img");
        objSlideShowImage.setAttribute('src', SlideShowStartImage);
        objSlideShowLink.appendChild(objSlideShowImage);

        //music player
        var objFlashPlayer = document.createElement("div");
        objFlashPlayer.setAttribute('id', 'flashPlayer');
        objBottomNav.appendChild(objFlashPlayer);
    },

//
//	start()
//	Display overlay and lightbox. If image is part of a set, add siblings to imageArray.
//
    start: function(imageLink) {
        firstTime = 1;
        saveSlideshow = slideshow;
        saveForeverLoop = foreverLoop;
        saveLoopInterval = loopInterval;

        saveSlideShowWidth = slideShowWidth;
        saveSlideShowHeight = slideShowHeight;

        hideSelectBoxes();

        // stretch overlay to fill page and fade in
        var arrayPageSize = getPageSize();
        Element.setHeight('overlay', arrayPageSize[1]);
        new Effect.Appear('overlay', { duration: 0.2, from: 0.0, to: 0.8 });

        imageArray = [];
        imageNum = 0;

        if (!document.getElementsByTagName) {
            return;
        }
        var anchors = document.getElementsByTagName('a');

        // if image is NOT part of a set..
        if ((imageLink.getAttribute('rel') == 'lightbox')) {
            // add single image to imageArray
            imageArray.push(new Array(imageLink.getAttribute('href'), imageLink.getAttribute('title')));
        } else {
            // if image is part of a set..

            // loop through anchors, find other images in set, and add them to imageArray
            for (var i = 0; i < anchors.length; i++) {
                var anchor = anchors[i];
                if (anchor.getAttribute('href') && (anchor.getAttribute('rel') == imageLink.getAttribute('rel'))) {
                    imageArray.push(new Array(anchor.getAttribute('href'), anchor.getAttribute('title')));

                    if (imageArray.length == 1) {
                        slideshowMusic = anchor.getAttribute('music');
                        if (slideshowMusic == null) {
                            Element.hide('flashPlayer');
                        } else
                        {
                            Element.show('flashPlayer');
                        }

                        var startSlideshow = anchor.getAttribute('startslideshow');
                        if (startSlideshow != null) {
                            if (startSlideshow == "false") slideshow = 0;
                        }

                        var forever = anchor.getAttribute('forever');
                        if (forever != null) {
                            if (forever == "true") foreverLoop = 1; else foreverLoop = 0;
                        }
                        var slideDuration = anchor.getAttribute('slideDuration');
                        if (slideDuration != null) {
                            loopInterval = slideDuration * 1000;
                        }
                        var width = anchor.getAttribute('slideshowwidth');
                        if (width != null) {
                            slideShowWidth = width * 1;
                        }
                        var height = anchor.getAttribute('slideshowheight');
                        if (height != null) {
                            slideShowHeight = height * 1;
                        }
                    }

                }
            }

            imageArray.removeDuplicates();
            while (imageArray[imageNum][0] != imageLink.getAttribute('href')) {
                imageNum++;
            }
        }

        this.changeImageByTimer(imageNum);
    },

    showLightBox: function() {
        // calculate top offset for the lightbox and display
        var arrayPageSize = getPageSize();
        var arrayPageScroll = getPageScroll();
        var lightboxTop = arrayPageScroll[1] + (arrayPageSize[3] / 15);

        Element.setTop('lightbox', lightboxTop);
        Element.show('lightbox');
    },

// changeImageByTimer()
// changes image using timer, which prevents the loading gif from spinning
// until the entire page is loaded
    changeImageByTimer: function(imageNum) {
        activeImage = imageNum;
        this.imageTimer = setTimeout(function() {
            this.showLightBox();
            this.changeImage(activeImage);
        }.bind(this), 10);
    },

//
//	changeImage()
//	Hide most elements and preload image in preparation for resizing image container.
//
    changeImage: function(imageNum) {

        activeImage = imageNum;
        // update global var

        // hide elements during transition
        Element.show('loading');
        Element.hide('lightboxImage');
        Element.hide('hoverNav');
        Element.hide('prevLink');
        Element.hide('nextLink');


        if (firstTime == 1) {
            Element.hide('imageDataContainer');
            Element.hide('numberDisplay');
            Element.hide('slideshowLink');
        }

        imgPreloader = new Image();

        // once image is preloaded, resize image container
        imgPreloader.onload = function() {
            Element.setSrc('lightboxImage', imageArray[activeImage][0]);

            objLightboxImage.setAttribute('width', imgPreloader.width);
            objLightboxImage.setAttribute('height', imgPreloader.height);

            if ((imageArray.length > 1) && (slideShowWidth != -1 || slideShowHeight != -1)) {
                if ((slideShowWidth >= imgPreloader.width) &&
                    (slideShowHeight >= imgPreloader.height)
                        ) {
                    myLightbox.resizeImageContainer(slideShowWidth, slideShowHeight);
                } else {
                    myLightbox.resizeImageAndContainer(imgPreloader.width, imgPreloader.height);
                }

            } else {
                myLightbox.resizeImageAndContainer(imgPreloader.width, imgPreloader.height);
            }
        }
        imgPreloader.src = imageArray[activeImage][0];
    },

    resizeImageAndContainer: function(imgWidth, imgHeight) {
        if (resize == 1) {//resize mod by magarnicle
            useableWidth = 0.9;
            // 90% of the window
            useableHeight = 0.8;
            // 80% of the window
            var arrayPageSize = getPageSize();
            windowWidth = arrayPageSize[2];
            windowHeight = arrayPageSize[3];
            scaleX = 1;
            scaleY = 1;
            if (imgWidth > windowWidth * useableWidth) scaleX = (windowWidth * useableWidth) / imgWidth;
            if (imgHeight > windowHeight * useableHeight) scaleY = (windowHeight * useableHeight) / imgHeight;
            scale = Math.min(scaleX, scaleY);
            imgWidth *= scale;
            imgHeight *= scale;

            objLightboxImage.setAttribute('width', imgWidth);
            objLightboxImage.setAttribute('height', imgHeight);
        }
        this.resizeImageContainer(imgWidth, imgHeight);
    },

//
//	resizeImageContainer()
//
    resizeImageContainer: function(imgWidth, imgHeight) {

        // get current height and width
        this.wCur = Element.getWidth('outerImageContainer');
        this.hCur = Element.getHeight('outerImageContainer');

        // scalars based on change from old to new
        this.xScale = ((imgWidth + (borderSize * 2)) / this.wCur) * 100;
        this.yScale = ((imgHeight + (borderSize * 2)) / this.hCur) * 100;

        // calculate size difference between new and old image, and resize if necessary
        wDiff = (this.wCur - borderSize * 2) - imgWidth;
        hDiff = (this.hCur - borderSize * 2) - imgHeight;

        if (!( hDiff == 0)) {
            new Effect.Scale('outerImageContainer', this.yScale, {scaleX: false, duration: resizeDuration, queue: 'front'});
        }
        if (!( wDiff == 0)) {
            new Effect.Scale('outerImageContainer', this.xScale, {scaleY: false, delay: resizeDuration, duration: resizeDuration});
        }

        // if new and old image are same size and no scaling transition is necessary,
        // do a quick pause to prevent image flicker.
        if ((hDiff == 0) && (wDiff == 0)) {
            if (navigator.appVersion.indexOf("MSIE") != -1) {
                pause(250);
            } else {
                pause(100);
            }
        }

        Element.setHeight('prevLink', imgHeight);
        Element.setHeight('nextLink', imgHeight);
        Element.setWidth('imageDataContainer', imgWidth + (borderSize * 2));

        this.showImage();
    },

//
//	showImage()
//	Display image and begin preloading neighbors.
//
    showImage: function() {
        Element.hide('loading');
        new Effect.Appear('lightboxImage', { duration: 0.5, queue: 'end', afterFinish: function() {
            myLightbox.updateDetails();
        } });
        this.preloadNeighborImages();
    },

//
//	updateDetails()
//	Display caption, image number, and bottom nav.
//
    updateDetails: function() {

        Element.show('caption');
        if (imageArray[activeImage][1] != '') {
            Element.setInnerHTML('caption', imageArray[activeImage][1]);
        } else {
            Element.setInnerHTML('caption', "&nbsp;");
        }

        // if image is part of set display 'Image x of x'
        if (imageArray.length > 1) {
            Element.show('numberDisplay');
            // I think Netvibes is disabling "eval" function. So, modified to work for Netvibes modules
            // Siddique - 12/13/2006
            var activeImageStr = eval(activeImage + 1);
            if (!activeImageStr)
            {
                activeImageStr = activeImage + 1;
            }
            Element.setInnerHTML('numberDisplay', "" + activeImageStr + " of " + imageArray.length);
        }

        if (firstTime == 1) {
            //firstTime = 0;
            new Effect.Parallel(
                    [ new Effect.SlideDown('imageDataContainer', { sync: true, duration: resizeDuration + 0.25, from: 0.0, to: 1.0 }),
                            new Effect.Appear('imageDataContainer', { sync: true, duration: 1.0 }) ],
            { duration: 0.65, afterFinish: function() {
                myLightbox.updateNav();
            } }
                    );
        } else {
            //this code was commented out because it causes the music player to restart in Firefox
            //		  new Effect.Parallel(
            //			[ new Effect.Appear('imageDataContainer', { sync: true, duration: 1.0 }) ],
            //		 	{ duration: 0.65, afterFinish: function() { myLightbox.updateNav();} }
            //		  );
            myLightbox.updateNav();
        }


        if (imageArray.length > 1) {
            Element.show('flashPlayer');
            Element.show('slideshowLink');
        } else {
            Element.hide('flashPlayer');
            Element.hide('slideshowLink');
        }

        if (slideshow == 1) {
            this.startSlideShow();
        }

    },

//
//	updateNav()
//	Display appropriate previous and next hover navigation.
//
    updateNav: function() {

        Element.show('hoverNav');

        // if not first image in set, display prev image button
        if (activeImage != 0) {
            Element.show('prevLink');
            document.getElementById('prevLink').onclick = function() {
                if (slideshow == 1) keyPressed = true;
                myLightbox.changeImage(activeImage - 1);
                return false;
            }
        }

        // if not last image in set, display next image button
        if (activeImage != (imageArray.length - 1)) {
            Element.show('nextLink');
            document.getElementById('nextLink').onclick = function() {
                if (slideshow == 1) keyPressed = true;
                myLightbox.changeImage(activeImage + 1);
                return false;
            }
        }

        this.enableKeyboardNav();

        if (firstTime == 1) {
            firstTime = 0;
            if (imageArray.length > 1 && slideshow == 1) this.showMusicPlayer();
            if (slideshow == 1) this.playMusic();
        }
    },

//
//	enableKeyboardNav()
//
    enableKeyboardNav: function() {
        document.onkeydown = this.keyboardAction;
    },

//
//	disableKeyboardNav()
//
    disableKeyboardNav: function() {
        document.onkeydown = '';
    },

//
//	keyboardAction()
//
    keyboardAction: function(e) {
        if (e == null) { // ie
            keycode = event.keyCode;
        } else { // mozilla
            keycode = e.which;
        }

        key = String.fromCharCode(keycode).toLowerCase();

        if ((key == 'x') || (key == 'o') || (key == 'c')) {    // close lightbox
            myLightbox.end();
        } else if ((keycode == 188) || (key == 'p')) {    // display previous image
            if (activeImage != 0) {
                if (slideshow == 1) keyPressed = true;
                myLightbox.disableKeyboardNav();
                myLightbox.changeImage(activeImage - 1);
            }
        } else if ((keycode == 190) || (key == 'n')) {    // display next image
            if (activeImage != (imageArray.length - 1)) {
                if (slideshow == 1) keyPressed = true;
                myLightbox.disableKeyboardNav();
                myLightbox.changeImage(activeImage + 1);
            }
        }


    },

//
//	preloadNeighborImages()
//	Preload previous and next images.
//
    preloadNeighborImages: function() {

        if ((imageArray.length - 1) > activeImage) {
            preloadNextImage = new Image();
            preloadNextImage.src = imageArray[activeImage + 1][0];
        }
        if (activeImage > 0) {
            preloadPrevImage = new Image();
            preloadPrevImage.src = imageArray[activeImage - 1][0];
        }

    },


//
//	toggleSlideShow()
//	startSlideShow()
//	stopSlideShow()
//	Slideshow Functions
//

    createMusicPlayer: function() {
        var color = Element.getStyle('imageDataContainer', 'background-color').parseColor();
        obj = new SWFObject(musicPlayer, "mymovie", "75", "30", "7", color);
        obj.addVariable("soundPath", slideshowMusic);
        obj.addVariable("playerSkin", "5");
        //skin 1-5
        return obj;
    },

    showMusicPlayer: function() {
        if (slideshowMusic != null) {
            Element.show('flashPlayer');
            so = this.createMusicPlayer();

            so.addVariable("autoPlay", "no");
            so.write("flashPlayer");
        } else {
            Element.hide('flashPlayer');
        }
    },

    playMusic: function() {
        if (slideshowMusic != null) {
            so = this.createMusicPlayer();

            so.addVariable("autoPlay", "yes");
            so.write("flashPlayer");
        }
    },

    stopMusic: function() {
        if ((slideshowMusic != null) && (so != null)) {
            so = this.createMusicPlayer();

            so.addVariable("autoPlay", "no");
            so.write("flashPlayer");
        }
    },

    toggleSlideShow: function() {
        if (slideshow == 1) this.stopSlideShow();
        else {
            this.playMusic();
            if (activeImage == (imageArray.length - 1)) {
                slideshow = 1;
                this.changeImage(0);
            } else {
                this.startSlideShow();
            }
        }
    },

    startSlideShow: function() {
        slideshow = 1;
        objSlideShowImage.setAttribute('src', SlideShowStopImage);
        this.slideShowTimer = setTimeout(function() {
            if (keyPressed) {
                keyPressed = false;
                return;
            }
            if (activeImage < (imageArray.length - 1)) this.changeImage(activeImage + 1);
            else {
                if (foreverLoop) this.changeImage(0);
                else {
                    this.stopMusic();
                    slideshow = 0;
                    objSlideShowImage.setAttribute('src', SlideShowStartImage);
                }
            }
        }.bind(this), loopInterval);
    },

    stopSlideShow: function() {
        slideshow = 0;
        objSlideShowImage.setAttribute('src', SlideShowStartImage);
        this.stopMusic();
        if (this.slideShowTimer) {
            clearTimeout(this.slideShowTimer);
            this.slideShowTimer = null;
            Element.setInnerHTML('flashPlayer', '');
        }
    },

//
//	end()
//
    end: function() {
        this.stopSlideShow();
        this.disableKeyboardNav();
        Element.hide('lightbox');
        new Effect.Fade('overlay', { duration: 0.2});
        showSelectBoxes();

        slideshow = saveSlideshow;
        foreverLoop = saveForeverLoop;
        loopInterval = saveLoopInterval;

        slideShowWidth = saveSlideShowWidth;
        slideShowHeight = saveSlideShowHeight;
    }
}

// -----------------------------------------------------------------------------------

//
// getPageScroll()
// Returns array with x,y page scroll values.
// Core code from - quirksmode.org
//
function getPageScroll() {

    var yScroll;

    if (self.pageYOffset) {
        yScroll = self.pageYOffset;
    } else if (document.documentElement && document.documentElement.scrollTop) {     // Explorer 6 Strict
        yScroll = document.documentElement.scrollTop;
    } else if (document.body) {// all other Explorers
        yScroll = document.body.scrollTop;
    }

    arrayPageScroll = new Array('', yScroll)
    return arrayPageScroll;
}

// -----------------------------------------------------------------------------------

//
// getPageSize()
// Returns array with page width, height and window width, height
// Core code from - quirksmode.org
// Edit for Firefox by pHaez
//
function getPageSize() {

    var xScroll, yScroll;

    if (window.innerHeight && window.scrollMaxY) {
        xScroll = document.body.scrollWidth;
        yScroll = window.innerHeight + window.scrollMaxY;
    } else if (document.body.scrollHeight > document.body.offsetHeight) { // all but Explorer Mac
        xScroll = document.body.scrollWidth;
        yScroll = document.body.scrollHeight;
    } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
        xScroll = document.body.offsetWidth;
        yScroll = document.body.offsetHeight;
    }

    var windowWidth, windowHeight;
    if (self.innerHeight) {    // all except Explorer
        windowWidth = self.innerWidth;
        windowHeight = self.innerHeight;
    } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
        windowWidth = document.documentElement.clientWidth;
        windowHeight = document.documentElement.clientHeight;
    } else if (document.body) { // other Explorers
        windowWidth = document.body.clientWidth;
        windowHeight = document.body.clientHeight;
    }

    // for small pages with total height less then height of the viewport
    if (yScroll < windowHeight) {
        pageHeight = windowHeight;
    } else {
        pageHeight = yScroll;
    }

    // for small pages with total width less then width of the viewport
    if (xScroll < windowWidth) {
        pageWidth = windowWidth;
    } else {
        pageWidth = xScroll;
    }


    arrayPageSize = new Array(pageWidth, pageHeight, windowWidth, windowHeight)
    return arrayPageSize;
}

// -----------------------------------------------------------------------------------

//
// getKey(key)
// Gets keycode. If 'x' is pressed then it hides the lightbox.
//
function getKey(e) {
    if (e == null) { // ie
        keycode = event.keyCode;
    } else { // mozilla
        keycode = e.which;
    }
    key = String.fromCharCode(keycode).toLowerCase();

    if (key == 'x') {
    }
}

// -----------------------------------------------------------------------------------

//
// listenKey()
//
function listenKey() {
    document.onkeypress = getKey;
}

// ---------------------------------------------------

function showSelectBoxes() {
    selects = document.getElementsByTagName("select");
    for (i = 0; i != selects.length; i++) {
        selects[i].style.visibility = "visible";
    }
}

// ---------------------------------------------------

function hideSelectBoxes() {
    selects = document.getElementsByTagName("select");
    for (i = 0; i != selects.length; i++) {
        selects[i].style.visibility = "hidden";
    }
}

// ---------------------------------------------------

//
// pause(numberMillis)
// Pauses code execution for specified time. Uses busy code, not good.
// Code from http://www.faqts.com/knowledge_base/view.phtml/aid/1602
//
function pause(numberMillis) {
    var now = new Date();
    var exitTime = now.getTime() + numberMillis;
    while (true) {
        now = new Date();
        if (now.getTime() > exitTime)
            return;
    }
}

// ---------------------------------------------------


function initLightbox() {
    myLightbox = new Lightbox();
}
//Event.observe(window, 'load', initLightbox, false);



//the code below suppose to help starting slideshow before a page is totaly loaded
function init() {
    // quit if this function has already been called
    if (arguments.callee.done) return;

    // flag this function so we don't do the same thing twice
    arguments.callee.done = true;

    // kill the timer
    if (_timer) {
        clearInterval(_timer);
        _timer = null;
    }

    // do onload stuff
    initLightbox();

}
;


/* for Mozilla */

if (document.addEventListener) {
    document.addEventListener("DOMContentLoaded", init, false);

}

/* for Safari */
if (/WebKit/i.test(navigator.userAgent)) { // sniff
    var _timer = setInterval(function() {
        if (/loaded|complete/.test(document.readyState)) {
            init();
            // call the onload handler
        }
    }, 10);
}



/* for other browsers */
//window.onload = init;

